420002390567 has 4 divisors (see below), whose sum is σ = 420262778040. Its totient is φ = 419742003096.

The previous prime is 420002390543. The next prime is 420002390593. The reversal of 420002390567 is 765093200024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420002390567 - 2¹⁸ = 420002128423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420002390567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420002390267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130191317 + ... + 130194542.

It is an arithmetic number, because the mean of its divisors is an integer number (105065694510).

Almost surely, 2^420002390567 is an apocalyptic number.

420002390567 is a deficient number, since it is larger than the sum of its proper divisors (260387473).

420002390567 is a wasteful number, since it uses less digits than its factorization.

420002390567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260387472.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 420002390567 in words is "four hundred twenty billion, two million, three hundred ninety thousand, five hundred sixty-seven".